package com.wxf.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;


@WebFilter({"/pages/*","/#1","/#2","/#3","/#4","/#5","/#6","/#7","/#8","/#9","/#10","/#11","/#12","/#13","/#14"})
public class LoginFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse resp = (HttpServletResponse)servletResponse;
        HttpSession session = request.getSession();
        String userName = (String)session.getAttribute("userName");
        System.out.println(userName);
        System.out.println(request.getContextPath());
        if(userName!=null){
            filterChain.doFilter(servletRequest,servletResponse);
        }
        else{
            resp.sendRedirect(request.getContextPath()+"/login.html");
        }
    }

    @Override
    public void destroy() {

    }
}
